Figure 1

2D simulation results. a. The 2D CMDS projection of 2000 simulation points. b. The 2D layout of an approximate solution by SC-MDS with no dimension loss (N _i = 30, N _g = 200). The points in a group were chosen randomly. c. The 2D layout of the approximate solution by SC-MDS with a loss of 12 dimensions (N _I = 5, N _g = 200). The points in a group were chosen randomly. d. The 2D layout of the approximate solution by SC-MDS with a loss of 12 dimensions (N _I = 5, N _g = 200). The points in a group were chosen by the neighboring method.